Official NBS 4.3v6 to GEN 3 V8 swap Guide

[pl4yboy]

Why clutter up a motor conversion topic with the same tranny question you asked in a new thread?

[gottaswapup]

That's a fair question. Here's my honest reply: First, I know some guys participate in some sub-forums but not in others. Second, I'm not the first to ask a swap related trans upgrade question in this thread, but those guys didn't get grief for it.

[ccreddell]

What you have to keep in mind is that we are all here to help each other. And we honestly are trying to you. You give us parameters that are clearly outside the known livability limits of the 4l60 (which is barely adequate for non-towing light duty use-and there are some who wouldnt even go that far) and then you ignore the advice and say youre going to do it anyway. I havent read any other posts you have put up with this same question, but I bet youre getting the same answer in those other places too. Im sorry, but it is what it is, and its going to be what it is going to be. And youre going to have to get used to people losing patience with you if you continue to ignore what they tell you. Just because you want a certain answer doesnt mean that its the right one-or that you'll get one that you like.

As far as whether anyone can build a '60 to live behind your engine, and in front of your load, the answer is yes. But the catch is, for how long. '60s can be built to take a lot of horsepower in a light car and do the 1/4 mile repeatedly, but towing 25,000lbs+ up a mountain or even a long 2% grade is going to fry it. It'll be fine around town but dont get too far away from home, or its going to be a long walk.

[carnell]

She's Alive!!!!!!!!!

But... a bit funky....

Got the engine swap done tonight. It took 2 of us a full 2 days. I'll go into more details on my own post but here is what I'm looking at,

I'm getting a P0405 TC at idle. I haven't driven the truck yet. I clear it but it comes back.

Back up lights are on while trans is in park and when the trans is in drive or rev, I'm getting a loud clicking noise from my brake pedal as if it's unlocking so I can shift from park to D or R. Also, back up lights turn off while in rev but go back on in park.

ideas...

Thanks

Carnell

p.s. She started right up on first try!!!!! I cant wait to take her for a spin......


****UPDATE*****

The code is for a EGR.... I don't think I have a EGR......... There is nothing on the passenger manifold.

[Mccool]

This is a very informative thread

I've got one question I didn't see answered...

Will motor mounts and/or frame mounts from a tahoe/suburban/Yukon 1500 2wd work?

Thanks for any help

[carnell]

The frame mounts won't work. You'll need to buy or find frame mounts for the silverado. My donor engine was from a tahoe and they gave me the existing frame mounts and it was a no go. The engine mounts are the same. I just got new ones before the install. Their not that expensive.

[Mccool]

Thank you very much for the quick reply. That's good to hear the motor mounts will work even if the frame mounts won't.

The dealership near me wanted $300 for the full set unfortunately. That sounded way high to me, but I didn't really know. Im scouring junkyards now.

[carnell]

Just know that the frame mounts that you need are to different molds. If I remember right, the passenger side was a bit bigger and cost more (new) then the driver side. If you get a set from the junk yard and they Are the same size, it's the wrong ones. I think the total cost for the frame mounts at the dealer was $150. I got my engine mounts online from rock auto. They had the beat prices for th engine mounts.

[Dreamer]

Yall are so lucky to have been able to do that to your trucks I know I will someday but noone I know around here is interested to help me, Im pretty sure I'll need another set of hands to swap everything around when the time comes. Im just glad I have all of you on here for reference lol.

[zebra]

Yall are so lucky to have been able to do that to your trucks I know I will someday but noone I know around here is interested to help me, Im pretty sure I'll need another set of hands to swap everything around when the time comes. Im just glad I have all of you on here for reference lol.

that's what i said... til i got a little extra motivation - something along the lines of a broken rod